Improvement in clock-dials



S E. R 0 0T. Glock-Dial.

No. 213,350'. Patented Mar. 18,1879.

lNvENTOR ATTORNEY LUNITED STATES PATENT OEEIGE.

S. EMERSON ROOT, OF BRISTOL, CONNEOTlOUT.

IMPROVEMENT IN CLOCK-DIALS.

Specilication forming part of Letters Patent No. 213,350, dated March18, 1879,' application tiled January 30, 1879.

To ali whom t may concern:

Be it known that l, S. EMERSON Boor, ot Bristol, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Clock-Dials 5 and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to malte and useit, reference being had to the accompanying drawings, which form part ofthis specitication.

My invention relates to an improvement in clock-dials, the object beingto provide a paper dial with a metallic rim or scalp, secured in such amanner that the outer edges of the paper dial will be held snuglyagainst the inwardly-preiecting iiange ot' the metallic rim or scalp,and thus dispense with a metallic bach for securing and retaining thepaper dial in place; and to this end my invention consists, iirst, inthe combina-tion, with a paper dial, ot' a metallic rim or scalp securedat its inner edge only to the outer edge ot' the paper dial by prongs orclips connected with the metallic rim second, in the combination, with apaper dial having notches in its outer edge, ot a metallic rim or scalphaving clips or prongs formed on its inneriiange and integral therewith.said prongs or clips being engaged with the notches in the paper dial,and serving to secure the latter in place.

ln the accompanying drawings, Figure l is a plan view ot' my improvedelocledial. Fig. 2 is a rear view. Fig. 3 is a transverse section; andiig. 1, an enlarged sectional view, showing the attaching-prong and itsmethod otl engagcmen t.

A represents a paper dial, preferably made et heavy paper-stock toprevent its warping when subjected to different temperatures andclimates. The outer edge of dial A is provided with any desired numberof notches a., the inner walls, of, of notches a being formed on a linewith the inner edge of the metallic scalp or rim. B is the scalp or rim,made otl any suitable metal, and constructed with an inwardlyprojectingliange, O, and an outwardly-projecting tiange, D. rlhe outwardlyprojecting tlange D constitutes a seat for the dial to enable the sameto be secured to the clock-ease, whichis effected byinsertingscrewsthrough the ange D and into the front ofthe clock-case. Theinner flange,O, serves as an annular seat for the paper dial, the outer edge of whichoverlaps the iiange O and seats snugly against the rear suriace thereof.

Upon the inner edge ot' the inner tlan ge, C, are termed any desirednumber of clips or pron E, which are turned outwardly at right angles tosaid ange, and the paper dial then applied so that the notches a thereinwill reg ister with said prongs when the outer edge of the dial ispressed against its seat, and the prongs turned inwardly, as representedin Fig. i3, thus firmly securing the paper dial in place.

As the fastening is eitected at the inner edge ot" the metallic rim, thepaper dial is eil t'ectually prevented Jfrom warping so as to produce anopen seam or joint between the dial and rim or scalp, which would oitenbe the case were the outer edge et' paper dial secured to any otherportion of the metallic rim or scalp except its extreme inner edge. y

As the metallic rim or scalp is constructed ot' very light and thinsheet-metal stock, the outer edge thereof is preferably turned under andback upon the tlange to forni a double thickness ot' metal for thesecure attachment ot the tastening-screws, and to prevent the bending ortearing ot' the outeriiange whenit is punctured or drilled to form thescrew-holes.

A dial constructed in accordance with my invention is ot small initialcost, as it cousists of but two parts-the dial face, ot'paper, and itsencircling metallic rim or scalp; and these parts, when secured in themanner shown and described, are firmly attached to eachother, and thedial prevented from be coming separated from the inner tlange ofthe rim.The prongs may be made separate and attached to the rear side of thedial-rim, but are preferably made integral with the rim, to ei'tectuallyobviate any danger of the accidental separation or displacement of thepaper dial when attached to a clock.

l t is evident that slight changes in the conA struction and form ot'the parts may be ref' sorted to Without departing from the spirit of myinvention, and hence I do not limit myself to the exact constructionshown and described; but,

Having fully described my invention, what I claim as new, and desire tosecure by Let-V ters Patent, is-

1. A clock -dial consisting essentially in the combination, with a metalrim or scalp, of a paper dial, the outer edge of which is secured to theinwardly-projecting ange of the lnetallic rim or scalp by means ofprongs or clips connected With the inner edge-of the scalp or rim,substantially as set forth.

2. In a clock-dial, the combination, with a metallic scalp orrim havingclips or prongs formed on its inner edge, and integral there-

